Found a great article over at raywenderlich.com by Riccardo D’Antoni. I should point out just how much of a Godsend this article was. I’m assembling / prototyping an interactive audio application for the IDM22 Interface & Information Design module – needless to say I’ve done literally tons of research into the best way of building working, clickable prototypes of an iPad app.

This app has gained a lot of positive feedback over the last 2 years – particularly with the UI crowd. I went ahead & purchased this today & I have to say it has some very useful features – multiple artboards / canvases is incredibly potent for mocking up different states of an interface.